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utils: Add utility function to calculate padding length

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This commit is contained in:
Tobias Brunner
2013-10-17 10:25:34 +02:00
parent 32fef0c6e9
commit 812ae898bf
2 changed files with 24 additions and 13 deletions
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src/libstrongswan/tests/test_utils.c
+8 -1
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@@ -167,11 +167,18 @@ START_TEST(test_untoh)
END_TEST
/*******************************************************************************
* round_up/down
* pad_len/round_up/down
*/
START_TEST(test_round)
{
ck_assert_int_eq(pad_len(0, 4), 0);
ck_assert_int_eq(pad_len(1, 4), 3);
ck_assert_int_eq(pad_len(2, 4), 2);
ck_assert_int_eq(pad_len(3, 4), 1);
ck_assert_int_eq(pad_len(4, 4), 0);
ck_assert_int_eq(pad_len(5, 4), 3);
ck_assert_int_eq(round_up(0, 4), 0);
ck_assert_int_eq(round_up(1, 4), 4);
ck_assert_int_eq(round_up(2, 4), 4);